Specifying the Waveforms for the Calibration of CISPR 16-1-1 Measuring Receivers
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Ensuring the measuring receiver's compliance with the specifications given in CISPR 16-1-1 is mandatory. This is achieved through traceable calibration of the instrument regarding its standard requirements. Incidentally, the receiver's response to pulses of the weighting detectors is the most challenging aspect that must be calibrated. The calibration method requires generating broadband pulses of a given impulse area and at certain repetition frequencies. Such pulses must deliver a known quasi-peak level and have a flat spectrum over the frequency band under consideration. Although the standard states the tolerable uncertainties for the pulse characteristics, it does not stipulate their exact waveform. This void is significant because it hinders the reproducibility of the calibration method, forbids to completely describe the CISPR 16-1-1 pulse generator, and truncates the traceability chain. This paper proposes a parametric model for pulsed waveforms that are compliant with the requirements established for the calibration of the receivers' response to pulses. The model is numerically solved and evaluated for producing a waveform vector that can be transformed into a reference voltage signal using arbitrary function generators. The validity of the proposed waveforms is experimentally verified in terms of its time domain characteristics and its frequency spectrum.
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CitationAzpurua, M. A.; Pous, M.; Silva, F. Specifying the Waveforms for the Calibration of CISPR 16-1-1 Measuring Receivers. "IEEE transactions on electromagnetic compatibility", 2 Juliol 2019, p. 1-9.
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